Push-button switch.



No. 742,508. PATENTED OCT. 27, 1903.

' A. B. SIMPSON.

PUSH BUTTON SWITCH.

APPLIGATION FILED JULY 9, 1903 N0 MODEL.

W/ TNESSES: IN Vf/V TOF? mn/Q ALEXANDER 5. SIMPSON HIS ATTORNEYS.

TN: ucnms vETERsGDIvPNQYCS-LWHQ. WASHINGTON, n. cy

NITED STATES ALEXANDER B. SIMPSON, OF NEW YORK,

Patented October 27, 19036 FFICE.

PATENT N.Y., ASSIGNOR TO H. KRANTZ RATION on NEW YORK.

PUSH-BUTTON SWITCH.

SPECIFICATION forming part of Letters Patent No. 742,508, dated October2'7,

Application filed July 9, 1903. Serial No. 164,817. (No model.)

T at whom it may concern:

Beit known thatI, ALEXANDER B. SIMPsoN, a citizen of the United Statesof America, and a resident of the borough of Manhattan, city of NewYork, in the county and State of New York, have invented an ImprovedPush-Button Switch, of which the following is a specification.

This invention relates to a push-button switch, and has for its objectto improve, simplify, and cheapen the construction of this type ofswitch.

In the accompanying drawings, Figure l is a side elevation of myimproved operating mechanism, the receptacle being shown in section.Fig. 2 is an edge or plan of the mechanism removed from the receptacle.Fig. 3 is a section on line 3 3, Fig. 2. Fig. 4 is a section on line 44:, Fig. 1, when the operating parts are in the position of Fig. 6.Figs. 5, 6, and 7 show the moving parts in position of contact,mid-position, and off position, respectively. Fig. 8 is a perspectiveview of the fixed plate which carries the operating parts. Fig. 9 is aperspective view of the plate which delivers ahammer-like stroke to movethe switch, and Fig. is a perspective view of one of the contact-bladesand the at- -cached plate which is struck the hammerblow.

P is the receptacle, of porcelain or the like, containing fixedcontact-clips c c. A plate 1 is secured across the top of the receptacleand carries a plate 3 to support the moving parts of the switch. Theplate 3 carries pivoted contact-blades B B, adapted to engage with theclips 0 c. The plate 3 has a sleeve 4 fastened at one end as a bearingfor the shaft 5, carrying the contact-blades, Figs. 2 and 4:. This shaft5 passes through a slot 6 in a plate 7, which has a lip 8 at one end anda stud 9 at its other end, the stud 9 passing through a slot 10 in thefixed plate 3. A spring 11, connected at one end to the stud 9 and atthe other to the sleeve 4, tends to always force the stud into the lowerends of the slot 10, and thus to move the plate 7 to the right, Figs. 1,2, 3, and 4. The shaft 5 carries a plate 12 and an anvil-plate 13,one'at each end and to which the blades B B are made fast, insulation14=being interposed, Figs. 4and 10. The anvil 13 projects above one ofthe blades. B, and its upper end is preferably at an angle with saidblade, so that one corner 15 is higher than the other, as shown in Figs.5, 6, 7, and 10. A cross-arm 16 is pivoted on a stud 17 to the plate 3and each end connected by piv oted links 20 20 with the push-buttons bb,

which project through openings in the coverplate 1. The cross-arm 16 hastwo projecting lugs 18 18, adapted upon the oscillation of the cross-armslot 10 and force the stud 9 of the slotted plate 7 up the incline ofthe slot from the position of Fig. 5'to the position of Fig. 6,compress= ing the spring 11, so that as the stud passes the center ofthe slot the stud will be forcibly and quickly pushed down into theother end of the slot, Fig. 7, causing the lip 8 to strike the corner 15of the plate 13 a hammerblow and move the shaft 5 and blades B 13 awayfrom the clips 0 c to breakthe circuit, as shown in Fig. 7, or upon theoperation of the oscillating cross-arm 16 in the other direction tosimilarly cause the blades B B to make connection again with the clips 0c, in which position the lip 8 of the blade 7 will occupy its innermostposition on an angle which limits the motion of the blades B B, and thusacts as a stop to make circuit always in proper relation to the clips 0c.

I claim as my invention- 1. Aswitch, having a contact-blade incombination with operating mechanism, comprising a shaft for the blade,an anvil adapted to turn with the blade, a slotted plate, a plate havinga groove in which the slotted plate is guided, a stud on said platepassing through the slot in the slotted plate, a spring tending to movethe slotted plate against the anvil, means for moving the slotted plateaway from said anvil, means to change its angle, and means to releasethe blade from said firstnamed means to cause it to strike the anvil,substantially as described. a

2. A switch having a contact-blade and an anvil, turning together, incombination with a plate 3, a groove and a bearing in said plate, ashaft carrying the contact-blade and anvil, a slotted plate slidable onthe shaft, a stud at to travel into the path of the one end of theslotted plate moving in the groove of the plate 3, a spring tending tomove the slotted plate toward the anvil and means for moving the stud inthe guide, substantially as described.

3. A switch having a plate 3, provided with a bearing and a groove, anda shaft in the bearing carryinga contact-blade and an anvil, incombination with a slotted plate having a lip and a stud, the slotfitting the shaft, and the stud fitting the groove, a springv betweenthe stud and shaft, and means for moving the stud along said groove,substantially as described.

4:. A switch having a plate 3 with a bearing

